2008 Toyota Avalon Owners Manual - Page 342

4-3. Do-it-yourself maintenance Battery Check the battery as follows. n Battery exterior Make sure that the battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps. Terminals Hold-down clamp n Checking battery condition Check the battery condition by the indicator color. Good condition Type A Green Type B Blue Charging necessary. Have the battery checked by your Toyota dealer. Not working properly, have the battery checked by your Toyota dealer. Dark White Clear or light yellow Red 318